Planetary hours
in Gent.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Wednesday, 3 December 2025: day of Mercury
- Sunrise
- 08:29
- Sunset
- 16:40
- Next sunrise
- 08:30
A day hour lasts 41 min; a night hour, 1h 19m. Local time (Europe/Brussels).
Day
- 1☿︎ Mercury08:29 – 09:10
- 2☽︎ Moon09:10 – 09:51
- 3♄︎ Saturn09:51 – 10:32
- 4♃︎ Jupiter10:32 – 11:12
- 5♂︎ Mars11:12 – 11:53
- 6☉︎ Sun11:53 – 12:34
- 7♀︎ Venus12:34 – 13:15
- 8☿︎ Mercury13:15 – 13:56
- 9☽︎ Moon13:56 – 14:37
- 10♄︎ Saturn14:37 – 15:18
- 11♃︎ Jupiter15:18 – 15:59
- 12♂︎ Mars15:59 – 16:40
Night
- 1☉︎ Sun16:40 – 17:59
- 2♀︎ Venus17:59 – 19:18
- 3☿︎ Mercury19:18 – 20:37
- 4☽︎ Moon20:37 – 21:57
- 5♄︎ Saturn21:57 – 23:16
- 6♃︎ Jupiter23:16 – 00:35
- 7♂︎ Mars00:35 – 01:54
- 8☉︎ Sun01:54 – 03:13
- 9♀︎ Venus03:13 – 04:33
- 10☿︎ Mercury04:33 – 05:52
- 11☽︎ Moon05:52 – 07:11
- 12♄︎ Saturn07:11 – 08:30
Other cities · Belgium
Questions
How are the planetary hours calculated in Gent?
On Wednesday, 3 December 2025, the Sun rises at 08:29 and sets at 16:40: the day lasts 8h 11m, that is twelve day hours of 41 min. The night, until the next sunrise at 08:30, lasts 15h 50m: twelve night hours of 1h 19m.
Which planet rules the first hour that day?
Mercury, from 08:29 to 09:10: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: the Moon, Saturn, Jupiter, Mars, the Sun, Venus, then Mercury again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.